The 1970s was a time when the Government released a lot of Public Information Films (PIFs) which were shown on television.  A PIF is a television commercial aimed at keeping children safe.  The first PIF that I can remember is “Charley Says Always Tell Your Mummy.”  It begins with a little boy named Dominic and his cat Charley playing at the back of the house.  Then along come two of Dominic’s friends, Vera and Dave, who ask him if he…